<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>频谱图可视化</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
    <h1>频谱图可视化</h1>
    <div class="controls">
        <button id="startButton">开始可视化</button>
        <div id="loadingMessage">加载中...</div>
    </div>
    <div class="song-controls">
        <div class="label">钢琴</div>
        <button id="playButton1">播放</button>
        <canvas id="canvas1" height="100"></canvas>
    </div>
    <div class="song-controls">
        <div class="label">古筝</div>
        <button id="playButton2">播放</button>
        <canvas id="canvas2" height="100"></canvas>
    </div>
    <div class="song-controls">
        <div class="label">吉他</div>
        <button id="playButton3">播放</button>
        <canvas id="canvas3" height="100"></canvas>
    </div>
    <div class="navigation">
        <a href="frequency.html">下一页</a>
    </div>
    <script src="script3.js"></script>
</body>
</html>